* Homelab
  
  This repository attemps to collect all required scripts, playbooks, etc to setup my homelab. This is forever work in progress.
  
  
** Setup Proxmox

   #+begin_quote
   [!Note]
   For the first execution, the password is required for ssh to proxmox nodes. \
   So run the playbook with additional argument -K. Thereafter the ssh authorized keys are set and password will not be required.
   #+end_quote
   
   #+begin_src sh
   cd ansible
   ansible-playbook proxmox.yml -K
   #+end_src
   
*** Run terraform to provision VMs

    #+begin_quote
    [!Note]
    This need to be run for all sub directories in each of the terraform environments we want to provision for.
    So, for sub project in terraform-bgp/envrionment/
    #+end_quote

    #+begin_src sh
    # as an example, to provison kubernetes VMs
    cd terraform-bgp/environment/home/kubernetes
    terraform init --upgrade
    terraform plan

    # optionally auto approve the apply ( --auto-approve )
    terraform apply
    #+end_src
    
*** Run ansible to setup VMs

    #+begin_src sh
    cd ansible
    ansible-playbook vm.yml
    #+end_src

** Usefull commands

   Random tidbits that I need to run frequently enough that these are useful but not so frequently that I will remember these.

*** Generate password for use in cloud init config
    #+begin_src sh
    mkpasswd --method=SHA-512 password
    #+end_src

*** Generate basic auth password

*** 

    #+begin_src sh
    echo $(htpasswd -nb "<USER>" "<PASSWORD>") | sed -e s/\\$/\\$\\$/g
    #+end_src

*** Cloud init debug

    for network check config file in /etc/netplan/
    #+begin_src sh
      sudo cloud-init clean --configs network
      sudo cloud-init init --local
    #+end_src
    
*** SSH

**** Remove known hosts entry when recreating VMs
     #+begin_src sh
     ssh-keygen -R <IP>
     #+end_src

**** Copy the ssh to the server
     Should not be required since VM's already copy the pre-seeded pubkey required.
     
     #+begin_src sh
     # Run in windows command prompt / powershell
     # Alternative to doing the same thing in ansible
     ssh <user@hostname> "mkdir -p .ssh"
     type $env:USERPROFILE\.ssh\id_rsa.pub | ssh <user@hostname> "cat >> .ssh/authorized_keys"
     #+end_src

*** Ansible

**** Check if ansible is able to reach the servers

     #+begin_src sh
     # if everything is set up
     ansible all -m ping
     
     # if ansible.cfg is not set up
     ansible all --key-file ~/.ssh/ansible -i inventory -m ping
     #+end_src

*** WSL

**** Ansible does not like world writable directory in WSL. Enable chmod and then remove write persmission from others.

     #+begin_src sh
     sudo umount /mnt/c
     sudo mount -t drvfs C: /mnt/c -o metadata
     sudo chmod o-w <ANSIBLE_DIRECTORY>
     #+end_src

*** Proxmox

**** Stop and remove VMs
     #+begin_src sh
     qm stop <VM_ID>
     qm destroy <VM_ID>
     #+end_src

*** Terraform
    
**** Destroy all resources
     
     #+begin_src sh
     terraform destroy
     #+end_src

*** Git

**** Rebase and squash entire branch
     #+begin_src sh
     git checkout --orphan new-master master
     git commit -m "Enter commit message for your new initial commit"
     
     # Overwrite the old master branch reference with the new one
     git branch -M new-master master
     #+end_src